[1] Univ Melbourne, Dept Med, Parkville, Vic, Australia
[2] Austin Hlth, Dept Rheumatol, Heidelberg, Vic, Australia
[3] Austin Hlth, Dept Clin Pharmacol & Therapeut, Heidelberg, Vic, Australia
[4] Massachusetts Gen Hosp, Div Rheumatol Allergy & Immunol, Boston, MA 02114 USA
[5] Univ Queensland, Sch Clin Med, Fac Med, Herston, Qld 4006, Australia
[6] Metro North Hosp & Hlth Serv, Royal Brisbane & Womens Hosp, Dept Rheumatol, Bowen Bridge Rd, Herston, Qld 4006, Australia